Related tools
WebM Video Cropper
Crop WebM in your browser. Optional MP4 output for universal playback.
WebM is common for screen capture and HTML5. Cropping WebM reframes without re-shooting. Export WebM or MP4 depending on audience. All processing is client-side.
When to use WebM Video Cropper vs other formats
Choose WebM-focused cropping for VP8/VP9 assets. For mixed devices, MP4 after crop is often simplest.
Compatibility
Safari on iOS may prefer MP4 — pick MP4 output when needed.
Quality considerations
Keep subject inside safe margins; WebM can show banding at very low bitrates after aggressive crops.
Example use cases
- Tighten screencasts for docs.
- Vertical crop from wide WebM.
- Remove browser chrome from captures.
Best practices
- Export MP4 for iOS viewers.
- Use presets for common ratios.
- Preview text overlays after crop.
Common use cases
- Documentation — Focus app UI regions.
- Marketing — Hero clips sized to layout.
- Cross-platform — MP4 handoff for review.
- Storage — Smaller pixel area may reduce size.
- Editing — Reframe before color grade.
Powered by browser video APIs and optimized processing algorithms.